JapCarForum Car Manufacturers Lexus/Toyota IS200 / IS300 / SPORTCROSS / Altezza Engine & Transmission Engine Revs hunting on Idle

Engine Revs hunting on Idle

Engine Revs hunting on Idle

S
Banned
1,153
16-11-2019, 03:25 PM
#1
Evening all,

the car has done this since i bought it, ive cleaned the TB and reset the ECU and it continued to hunt on idle.

it sits at around 900rpm for a while and then the revs drop a little bit and the lights dim (if on) and the revs almost immediatley pick up and then it idles at 1000rpm for a while before returning to 900.

A video is below (Ignore the warning light its because i used the wiring from the parcel shelf light for the boot spoiler and i havnt bothered to sort it)

my question is: Is this normal idle behavior for a warm 1G-FE or is there a problem?

<embed width="600" height="361" type="application/x-shockwave-flash" allowFullscreen="true" allowNetworking="all" wmode="transparent" src="http://static.photobucket.com/player.swf" flashvars="file=http%3A%2F%2Fvid77.photobucket.com%2Falbums%2Fj60%2Fdopple-ganger%2FVIDEO0025.mp4">
S
16-11-2019, 03:25 PM #1

Evening all,

the car has done this since i bought it, ive cleaned the TB and reset the ECU and it continued to hunt on idle.

it sits at around 900rpm for a while and then the revs drop a little bit and the lights dim (if on) and the revs almost immediatley pick up and then it idles at 1000rpm for a while before returning to 900.

A video is below (Ignore the warning light its because i used the wiring from the parcel shelf light for the boot spoiler and i havnt bothered to sort it)

my question is: Is this normal idle behavior for a warm 1G-FE or is there a problem?

<embed width="600" height="361" type="application/x-shockwave-flash" allowFullscreen="true" allowNetworking="all" wmode="transparent" src="http://static.photobucket.com/player.swf" flashvars="file=http%3A%2F%2Fvid77.photobucket.com%2Falbums%2Fj60%2Fdopple-ganger%2FVIDEO0025.mp4">

S
Banned
1,153
16-11-2019, 03:26 PM
#2
hopefully this link will work

[Image: th_VIDEO0025.jpg]
S
16-11-2019, 03:26 PM #2

hopefully this link will work

[Image: th_VIDEO0025.jpg]

Sparkystav
Administrator
14,683
16-11-2019, 03:45 PM
#3
have you got the aircon on?

i would bet its the clutch dropping in and out, its supposed to do that

OutlawJapClub Admin Team
Sparkystav
16-11-2019, 03:45 PM #3

have you got the aircon on?

i would bet its the clutch dropping in and out, its supposed to do that


OutlawJapClub Admin Team

S
Banned
1,153
16-11-2019, 03:55 PM
#4
yeah the aircon is almost always on lol

EXCELLENT i was worrying you were going to say its an expensive problem!
S
16-11-2019, 03:55 PM #4

yeah the aircon is almost always on lol

EXCELLENT i was worrying you were going to say its an expensive problem!

S
Banned
1,153
16-11-2019, 03:55 PM
#5
Thanks alot btw stav Big Grin
S
16-11-2019, 03:55 PM #5

Thanks alot btw stav Big Grin

Sparkystav
Administrator
14,683
16-11-2019, 04:05 PM
#6
just try it mate, turn the aircon off and it shouldnt happen then.

the ecu does attempt to compensate but it cant be perfect

OutlawJapClub Admin Team
Sparkystav
16-11-2019, 04:05 PM #6

just try it mate, turn the aircon off and it shouldnt happen then.

the ecu does attempt to compensate but it cant be perfect


OutlawJapClub Admin Team

Recently Browsing
 
Recently Browsing
 
Related Threads…
Replies 1
Views 423
15-04-2023, 09:06 AM
Last Post by Sparkystav
Replies 3
Views 572
15-01-2023, 08:08 AM
Last Post by FOSSIL FUELS
Replies 9
Views 1,117
17-08-2022, 09:38 AM
Last Post by mattlaw
Replies 0
Views 323
12-05-2021, 09:14 AM
Last Post by Ji123
Replies 3
Views 664
23-04-2021, 03:50 AM
Last Post by S
Replies 8
Views 972
01-04-2021, 08:42 AM
Last Post by Rabster
Replies 1
Views 449
10-03-2021, 05:19 AM
Last Post by mattlaw
Replies 10
Views 1,356
12-12-2020, 11:50 AM
Last Post by Phil01
Replies 9
Views 1,187
14-11-2020, 09:36 PM
Last Post by Rabster
Replies 5
Views 884
25-06-2020, 04:13 PM
Last Post by el_bandido